Agricultural tractor.



A. El ZUCK.

AGRICULTURAL TRACTOR.

APPLIUATION FILED MAY z3, 190s.

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AGRICULTURAL TRACTOR. APPLIUATION FILED MAY 23, 1908'.

1,033,976, Patented July 3o, 1912.

2 SHEETS-SHEET 2.

IIIIIH WTNE'EEE'S y IN1/ENTER,

` provision of simple .AUGUST E. ZOCK',

OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ARCHIBALD B. CREPS,0F MAUME, OHIO.

AGRICULTURAL TRACTOR.

Specification of Letters Patent.

Patented July 3G, 1912.

Applicatonled May 23, 1908. Serial No. 434,615.

To all w/tom t may concern Be it known that I, AUGUST E. Zoon, a citizenof the United States, and a resident of Toledo, in the county of Lucasand State of Ohio, have invented a certain new and useful AgriculturalTractor; and I debereby declare the following to be a full, clear, andexact description of the invention, such as will enable vothers skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification. l

My invention relates tomotor trucks, and particularly to those adaptedfor use as agricultural tractors, wherein the power is at times appliedfor propelling the machine and at other times for` operating anothermachine or apparatus. This invention is not, however, limited to suchuse, but may be used in any connect-ion for whlch It may be adapted orappropriate.

The object of myv invention 1s the provision of an improved and highlyeiclent machine of the class, which is simple, strong and durable in itsconstruction, easy of operation, and inexpensive ofk manufacture, thusenhancing its practicability and com-A mercial value.

A further object of my invention is the and improved means forcontrolling the lowering or raising of the push-bars and thesimultaneous throwing of the crank-shaft to which they .are attachedinto or out of commission with the actuating mechanism, as the case maybe.

A further very important object of my invention is the provision, inmotor-trucks or otherv vehicles having front and rear drive wheels, ofan improved lconnection between the steering-Wheels and the motorkjack-shaft, which will obviate the objections heretofore raised to theuse of gear connections between such parts.

Further advantages of my invention as Well as the operation,construction and arrangement of the parts of the same are fullydescribed in the following specifica tion, and a preferred embodiment ofthe same illustrated in the accompanying drawings, in which,

Figure 1 is a plan view of the machine embodying my invention with thebody removed. Fig. 2 is a front view-thereof. Fig.

3 is a longitudinal section of the same. Fig. 4 is a face viewof theguide-plate for the push-bars. Figs. 5 and 6 are plan and side detailsof the mechanism controlling the raising and lowering of the push-barsand the throwing of the same into or out of connection with the drivingmeans, and Fig. 7 is an enlarged view of the front end of the vehicle.

Referring to the drawings, X designates the frame of the machine onwhich the body or platform is mounted. This frame is supported by frontand rea-r axles Y and Z and carried by Wheels Z, the front pair of whichl are mount-ed on the customary plvoted studs or spindles, connectedtogether in the usual manner. The arrangement is preferably such thatall four Wheels act as drivers, the rear Wheels being shown as chaindriven and the front wheels as driven by a form of pin gearing',l whichlatter forms a part of my present invention. In addition to these drivesa push-bar drive is also provided, which will be hereinafter more fullydescribed.

The power shaft of vthe machine is designated at H and may be driven byany suitable engine. This shaft is mounted in suitable bearingslengthwise of the frame at the middle thereof, and is provided with ashifty ing-gear C by means of which either the opere-ting mechanism orthe propelling mechanism may be driven. The former has a gear E on ashaft I, whichshaft is mounted in suitable bearings above the shaft Hand carries a pulley F to which a belt may be applied or from whichpower may be communicated in any other suitable manner for driving anykind of machinery. A shifting of the gear C in one direction on itsshaft moves' it into mesh with the gear E.

The propelling mechanism is driven through a gear' D with which the gearC may engage by shifting the seme in the opposite direction to thatrequired to throw it into m vh with the gear E. The gear D is mounte ona longitudinal shaft H2 which has universal joints 3, and which extendsforwardly and has connection with the jackshaft 4 of the front drivingmechanism through the medium of a suitable differential mechanism T. Theiack-shaft 4 is pro vided at its ends with pinions Q which engage withpinions S mounted on the upwardly extending ends of the pivots of thefront or steering wheel` knuckles, and the pinions lS mesh withlargergears M secured to the inner sides of' the front wheels Z.

The driving `of the front" or steering wheels of vehicles by the use oftwo initer.A

pinions anda bevel gear or by three bevel gears of differentl sizes hasheretofore been found impractical, dueft'o the fact that it is`mechanically impossible to drive a bevel thev use of gears of thischaracter inzwheel driving mechanisms, I have adopted'gears and p mionshaving ball-end peg-cogs or teeth which ermit a series of gearscorresponding to evelv or miter gears of anysize to perfectly mesh*together and also facilitate -a turning of the wheel-gear 'around theaxis of the meshing gear when makingl a' turn.V A further very importantfeature incident tothe use of gears of this type in' drivingfmechanismforvehicles is that any vmud gathering between the teeth thereof is.

easily forced out bythe action of the meshing teeth, whereas with'the"use of gears of. the bevel o'r miter type, mud willV continue toaccumulate between the teeth ofthe same and-cause the 'meshing gears tospread .or crowd away from each other. n

The rear wheels aredriven b means of a beveled gear Y on the rear en ofthe shaft H2, vwhich meshes with and operates' a beveled gear anddifferential gear V on a jack or cross-shaft R, which has at I'its'opposite ends sprockets W, v which drive large sprockets W2 on the rearwheels by means of sprocket-chains W2. The shaft R also has a spur-gearW, which, through an intermediate shifting-pinion L, on a stub-shaft P,drives a ear N on one end of acrankshaft J lhis crank-shaft is mountedtransversely of the frame and is shown in the present instance as havinfour cranks set 0n quarters to each of Whic the forward end of apush-bar A connects. Each of these push-bars is rovided at its foot orrear A,end with a conical block A which has its s'mall end forward and aspur A2 projecting centrally from its rear or large end, whichspur has,its rear or pointed end preferably curved downwardly, asshown, tofacilitate a firm engagement of the same with the surface over which itis traveling when in action.` The particular shape of the blocks A notonly enables such blocks to work well on soft or blunt pushingsurface,but facilitates push-bars are lowered -to ground, by giving ia .largeaan easy and quick withdrawal of such blocks from soft ground, due to thewedge forma-f ...tion of the blocks forcingfthe same quickly to. thesurface asl thev push-bars advance.

This form of blocks .also prevents a gathering and clogging oflsoil uponthe same. v

The push-bars Atrailunde'r the rear of the machine and work throughvertically elongated opening'l's'G/ in a guide-plate Gr, which issuspended beneath the machine -transversely thereof byv arms. Gr2connected to theshaft J and by hangers GB connected to arms G*projecting rearwardly from a` cross-shaft gfwhich 'has its lendsjournaled inthe frame to efecta raising or lowering of the guide-plateand push-bars by an-oscillation of the vhand lever P2, which llever hasconnectionwith` such shaft throughsv rod p 'and ar'mwip" on said'shaftasbest is rocked ,due to an army. onsidfilatter shaft and a link or rodrfc'oinmunieating motion to the bell-crankedi'shiftiig lever Pz,Ywhich'is fulcrumed Yto the frame, 't and basan end'n'hngagement with;thefhub of the pinO'nL, asshown.-" "The connection between the shaftgfandpinion L ris such thatV the crank-shaft -J is thrown into gear withthe drivingv mechanism when the operative position,

and vice versa.- w j i I wish it understol j thatv my invention is assnchlimitati'ons-are s' ecified in 4the claim. Having thus describe myinventinLwhat I claim 4as new and desire to secure by1Letters Patent,is,-l n

vIn an a icultural tractor, the combination of a l the same, a ropellinmechanism supported by -said rame and includin a pair ofVinter-geared-driven shafts, flexible connections between one of the'driven shafts and the wheels on one axle, a gear carried byl the otherdriven shaft, a drive shaft, a gear slidable on said drive shaft forengagement with and disengagement from the firstnamed gear, nieans'forshift-ing the slidable gear, a shaft journaled in said fra-Ineandarranged above 'andpiiallel with the drive shaft, and a gear carried bythe upper shaft and -arranged for engagement with said slidable gearwhen thellatter is disengaged vshown in Figsz 5 Zand 6. The pinicn-Lisalso shifted its shaft whenv the lshafteg 'notlimited tonany specificconstruction or ,arrangement of the parts except-in so far ame, wheeledaxles supporting' In testimony vwhereof II aixmy signa- I JOHN A.BoMuEAk-tr, `Mormon E. MILLER.

ture, in presence of two wtness.

